Davlat test markazi state testing centre under the cabinet of ministers



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This sounds remarkably like the ideas of the 18th-century economist Adam Smith. In his book, 
The earth 
of Nations
, Smith postulated that in human society the competitive interactions of different economic 
units' eventually resulted in a balanced, or ‘harmonious' society. One might predict, therefore, that 
economists would find the relationships between bees and plants of some interest. This is the case in 
Israel, where economists are collaborating with botanists and entomologist sin a long-term study of the 
pollination biology of the native flora, in an attempt to understand the dynamics of the relationship 
between communities of bees and plants. 
 
D
It is important that authorities understand the dynamic relationships between plants and their 
pollinators. Here, as in all rainforests, there is a high diversity of tree species. There may be more than 120 
per acre, but in a given acre there may only be one or two individuals of any one species. These trees 
are pollinated by large, fast-flying bees. There is evidence that certain types of bee learn the distribution 
of these scattered trees and forage regularly along the same routes.
 
E
There is much discussion on seed dispersal distances. But this is only one half of the equation, so far as 
the reproduction of trees is concerned and there is another question that must be addressed in order to 
calculate
 
whether proposed forest reserves are close enough to the nearest large tract of forest:
 
‘What is
the flight range of these long-
distance foragers?’ We need to know much more about bees and their 
relationships with plants before this question can be answered. 
 
 
 
 
 
Part 4
 

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